METHOD AND APPARATUS FOR INFLUENCING THE THICKNESS AND GLOSSAND/OR SMOOTHNESS IN THE TREATMENT OF FIBER MATERIAL WEBS

摘要

A method is described for influencing the thickness and gloss and/or smoothness in the treatment of fiber material webs in at least one press gap formed by rolls, wherein at least one adjustable deflection roll is used and a plurality of correction sections is provided over the press gap length which can be influenced in differential manner with respect to temperature and/or pressure, wherein, for the decoupling of the two correction procedures the pressing force changes threatening in the correction sections of the relevant press gap through local changes in diameter of the relevant roll resulting from changes of the surface temperature are at least substantially prevented by means of adequate compliance of the support elements and jacket.